1 Corinthians 10
16 Ref The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ?
17 Ref For we being many are one bread, and one body: for we are all partakers of that one bread.
18 Ref Behold Israel after the flesh: are not they which eat of the sacrifices partakers of the altar?